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https://e2e.ti.com/support/data-converters-group/data-converters/f/data-converters-forum/839704/adc121s051-adc121s051-higher-clock-voltage-than-supply-voltage
您好！
在电源电压为3V 时、是否可以使用5V 时钟信号运行 ADC121S051？
此致 Tobi
是的。 数字引脚独立于模拟电源工作。 只要数字引脚电压在所需范围−0.3V 至+5.25V 之内、无论电源如何。
此致
Cynthia
